Circle has launched a wrapped Bitcoin token on Ethereum, directly challenging WBTC and signalling that the stablecoin giant wants a much bigger role in DeFi.
Bitcoin has long been the crown jewel of crypto by market cap, but its usefulness inside decentralized finance has always been awkward. Holders who want to put their BTC to work in lending protocols or liquidity pools on Ethereum have had to rely on wrapped tokens, synthetic versions pegged to Bitcoin's price, and the dominant player has been WBTC, a token managed by BitGo. That arrangement has worked reasonably well, but the custody model behind WBTC has raised questions for years. Circle is now stepping into that gap with its own offering, a wrapped Bitcoin token built to give holders a more transparent and regulated path into DeFi.
The move makes strategic sense for a company best known for USDC, the second-largest stablecoin with roughly $34 billion in circulation. Circle already commands deep trust among institutions and developers who rely on USDC for trading, settlement and yield strategies. Adding a wrapped Bitcoin product to its catalogue means Circle can offer a broader suite of assets to the same audience, reducing the friction of moving between custodians and protocols. As U.Today reported, Circle is positioning this launch as a serious effort to integrate Bitcoin into DeFi at scale, not just another token experiment.
The concept behind wrapped tokens is straightforward. Bitcoin runs on its own blockchain, which lacks the smart contract capabilities that make Ethereum so powerful for DeFi. Wrapped tokens solve this by locking real Bitcoin in custody and issuing a corresponding ERC-20 token on Ethereum that mirrors Bitcoin's price. The holder can then use that token across decentralized exchanges, lending platforms and yield farming protocols. WBTC currently dominates this market with a supply that has fluctuated between roughly 120,000 and 150,000 tokens over the past year, representing over a billion dollars in value at current prices.
The problem is trust. WBTC relies on a centralized custodian and a small group of merchants who handle minting and burning. For a market built on the promise of decentralization, this has always been a tension. When BitGo announced plans to move WBTC custody to a joint venture with BiT Global, a Hong Kong-based entity linked to Justin Sun, the community reacted with unease. Major DeFi protocols including MakerDAO and Aave opened governance discussions about reducing exposure to WBTC or accepting it only with stricter risk parameters. That controversy has created an opening for competitors.
What Circle brings differently
Circle's wrapped Bitcoin token enters the market with a distinct advantage: regulatory credibility. As the issuer of USDC, Circle already operates under strict compliance frameworks, including money transmitter licenses across the United States and partnerships with regulated financial institutions for custody. The company has published regular attestations of its reserves through Grant Thornton, setting a transparency standard that most crypto issuers have struggled to match. Applying this same compliance-first approach to a wrapped Bitcoin product could attract institutional capital that has stayed away from WBTC due to custody concerns.
There is also a practical edge. Developers building on Ethereum already integrate USDC into nearly every major protocol. A wrapped Bitcoin token from the same issuer means simpler technical integration, shared compliance assumptions and potentially lower operational overhead for platforms that want to support both assets. Circle has not disclosed full details on custody partners or fee structures, but the competitive pressure alone could force WBTC to improve its own transparency and reduce costs.
Market implications and what to watch
The broader DeFi market has been recovering gradually through 2024 and into 2025, with total value locked climbing back above $90 billion after languishing well below that through the bear market. Bitcoin's role in that recovery has been muted compared to Ethereum-native assets, partly because the wrapped Bitcoin experience has been clunky and partly because Bitcoin holders have had easier ways to earn yield through centralized lending products and spot ETFs. A credible wrapped token from Circle could shift that dynamic by making DeFi access more seamless for Bitcoin-heavy portfolios.
Watch for how quickly major protocols adopt Circle's token. If Aave, Compound and Uniswap list it alongside or instead of WBTC, the competitive landscape will shift fast. Also worth tracking is whether Circle expands the token to other chains beyond Ethereum, particularly Solana and Base, where USDC already has significant traction. A multi-chain wrapped Bitcoin product would be a genuinely different proposition from WBTC's Ethereum-centric model and could unlock Bitcoin liquidity across a much wider set of ecosystems.
